Abstract

We have developed a new optical storage system that uses minute spheres arranged upon a surface-relief grating. By using dye-doped minute spheres as recording bits we can limit a sensitive region within a sphere’s diameter. Using a reflection-type confocal optical system, we read out shape signals from minute spheres at high resolution. The shape signals from minute spheres are utilized as clock signals in recording and readout.

© 2005 Optical Society of America

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2003 (1)

N. Kobayashi, C. Egami, and Y. Kawata, Opt. Rev. 10, 262 (2003).
[Crossref]

2002 (1)

N. Kobayashi, C. Egami, Y. Kawata, O. Sugihara, and H. Fujimura, Jpn. J. Appl. Phys. 41, 1907 (2002).
[Crossref]

2000 (2)

M. Hatakeyama, T. Ando, K. Tsujita, and I. Ueno, Jpn. J. Appl. Phys. 39, 752 (2000).
[Crossref]

S. Kawata and Y. Kawata, Chem. Rev. 100, 1777 (2000).
[Crossref]

1999 (1)

1998 (2)

1997 (1)

1991 (1)

A. E. Dixon, S. Damaskinos, and M. R. Atkinson, Nature 351, 551 (1991).
[Crossref]

1990 (1)

S. M. Mansfield and G. S. Kino, Appl. Phys. Lett. 57, 2615 (1990).
[Crossref]

1989 (1)

G. J. Ashwell, E. J. C. Dawnay, A. P. Kuczynski, and M. Azablewski, Mater. Res. Soc. Symp. 173, 507 (1989).
[Crossref]

1986 (1)

A. Morinaka, S. Oikawa, and H. Yamazaki, Appl. Phys. Lett. 49, 1677 (1986).
[Crossref]

Ando, T.

M. Hatakeyama, T. Ando, K. Tsujita, and I. Ueno, Jpn. J. Appl. Phys. 39, 752 (2000).
[Crossref]

Ashwell, G. J.

G. J. Ashwell, E. J. C. Dawnay, A. P. Kuczynski, and M. Azablewski, Mater. Res. Soc. Symp. 173, 507 (1989).
[Crossref]

Atkinson, M. R.

A. E. Dixon, S. Damaskinos, and M. R. Atkinson, Nature 351, 551 (1991).
[Crossref]

Azablewski, M.

G. J. Ashwell, E. J. C. Dawnay, A. P. Kuczynski, and M. Azablewski, Mater. Res. Soc. Symp. 173, 507 (1989).
[Crossref]

Baba, K.

Damaskinos, S.

A. E. Dixon, S. Damaskinos, and M. R. Atkinson, Nature 351, 551 (1991).
[Crossref]

Dawnay, E. J. C.

G. J. Ashwell, E. J. C. Dawnay, A. P. Kuczynski, and M. Azablewski, Mater. Res. Soc. Symp. 173, 507 (1989).
[Crossref]

Dixon, A. E.

A. E. Dixon, S. Damaskinos, and M. R. Atkinson, Nature 351, 551 (1991).
[Crossref]

Egami, C.

N. Kobayashi, C. Egami, and Y. Kawata, Opt. Rev. 10, 262 (2003).
[Crossref]

N. Kobayashi, C. Egami, Y. Kawata, O. Sugihara, and H. Fujimura, Jpn. J. Appl. Phys. 41, 1907 (2002).
[Crossref]

M. Ishikawa, Y. Kawata, C. Egami, O. Sugihara, N. Okamoto, M. Tsuchimori, and O. Watanabe, Opt. Lett. 23, 1781 (1998).
[Crossref]

Fujimura, H.

N. Kobayashi, C. Egami, Y. Kawata, O. Sugihara, and H. Fujimura, Jpn. J. Appl. Phys. 41, 1907 (2002).
[Crossref]

Gu, M.

Hatakeyama, M.

M. Hatakeyama, T. Ando, K. Tsujita, and I. Ueno, Jpn. J. Appl. Phys. 39, 752 (2000).
[Crossref]

Herrman, J.

Ishii, T.

Ishikawa, M.

Kawano, K.

Kawata, S.

Kawata, Y.

N. Kobayashi, C. Egami, and Y. Kawata, Opt. Rev. 10, 262 (2003).
[Crossref]

N. Kobayashi, C. Egami, Y. Kawata, O. Sugihara, and H. Fujimura, Jpn. J. Appl. Phys. 41, 1907 (2002).
[Crossref]

S. Kawata and Y. Kawata, Chem. Rev. 100, 1777 (2000).
[Crossref]

M. Ishikawa, Y. Kawata, C. Egami, O. Sugihara, N. Okamoto, M. Tsuchimori, and O. Watanabe, Opt. Lett. 23, 1781 (1998).
[Crossref]

Kino, G. S.

S. M. Mansfield and G. S. Kino, Appl. Phys. Lett. 57, 2615 (1990).
[Crossref]

Kobayashi, N.

N. Kobayashi, C. Egami, and Y. Kawata, Opt. Rev. 10, 262 (2003).
[Crossref]

N. Kobayashi, C. Egami, Y. Kawata, O. Sugihara, and H. Fujimura, Jpn. J. Appl. Phys. 41, 1907 (2002).
[Crossref]

Kuczynski, A. P.

G. J. Ashwell, E. J. C. Dawnay, A. P. Kuczynski, and M. Azablewski, Mater. Res. Soc. Symp. 173, 507 (1989).
[Crossref]

Mansfield, S. M.

S. M. Mansfield and G. S. Kino, Appl. Phys. Lett. 57, 2615 (1990).
[Crossref]

Minabe, J.

Morinaka, A.

A. Morinaka, S. Oikawa, and H. Yamazaki, Appl. Phys. Lett. 49, 1677 (1986).
[Crossref]

Niitsu, T.

Nishikata, Y.

Oikawa, S.

A. Morinaka, S. Oikawa, and H. Yamazaki, Appl. Phys. Lett. 49, 1677 (1986).
[Crossref]

Okamoto, N.

Sugihara, O.

N. Kobayashi, C. Egami, Y. Kawata, O. Sugihara, and H. Fujimura, Jpn. J. Appl. Phys. 41, 1907 (2002).
[Crossref]

M. Ishikawa, Y. Kawata, C. Egami, O. Sugihara, N. Okamoto, M. Tsuchimori, and O. Watanabe, Opt. Lett. 23, 1781 (1998).
[Crossref]

Toriumi, A.

Tsuchimori, M.

Tsujita, K.

M. Hatakeyama, T. Ando, K. Tsujita, and I. Ueno, Jpn. J. Appl. Phys. 39, 752 (2000).
[Crossref]

Ueno, I.

M. Hatakeyama, T. Ando, K. Tsujita, and I. Ueno, Jpn. J. Appl. Phys. 39, 752 (2000).
[Crossref]

Watanabe, O.

Yamazaki, H.

A. Morinaka, S. Oikawa, and H. Yamazaki, Appl. Phys. Lett. 49, 1677 (1986).
[Crossref]

Appl. Phys. Lett. (2)

A. Morinaka, S. Oikawa, and H. Yamazaki, Appl. Phys. Lett. 49, 1677 (1986).
[Crossref]

S. M. Mansfield and G. S. Kino, Appl. Phys. Lett. 57, 2615 (1990).
[Crossref]

Chem. Rev. (1)

S. Kawata and Y. Kawata, Chem. Rev. 100, 1777 (2000).
[Crossref]

Jpn. J. Appl. Phys. (2)

M. Hatakeyama, T. Ando, K. Tsujita, and I. Ueno, Jpn. J. Appl. Phys. 39, 752 (2000).
[Crossref]

N. Kobayashi, C. Egami, Y. Kawata, O. Sugihara, and H. Fujimura, Jpn. J. Appl. Phys. 41, 1907 (2002).
[Crossref]

Mater. Res. Soc. Symp. (1)

G. J. Ashwell, E. J. C. Dawnay, A. P. Kuczynski, and M. Azablewski, Mater. Res. Soc. Symp. 173, 507 (1989).
[Crossref]

Nature (1)

A. E. Dixon, S. Damaskinos, and M. R. Atkinson, Nature 351, 551 (1991).
[Crossref]

Opt. Lett. (4)

Opt. Rev. (1)

N. Kobayashi, C. Egami, and Y. Kawata, Opt. Rev. 10, 262 (2003).
[Crossref]

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Figures (6)

Fig. 1
Fig. 1

Atomic-force microscope top view and bird’s-eye view images, left and right, respectively, of an array of minute spheres.

Fig. 2
Fig. 2

Optical setup of a reflection-type confocal optical system: SHG, second-harmonic generation; ND, neutral-density.

Fig. 3
Fig. 3

Schematic diagram of the readout system for minute optical storage.

Fig. 4
Fig. 4

Profile of a confocal reflected signal from a mirror.

Fig. 5
Fig. 5

Profiles of the confocal signal from a single minute sphere in the XY plane and cross sections (scan area, 1 µm×1 µm; scan step, 0.1 µm).

Fig. 6
Fig. 6

Profiles of the confocal signal from an array of minute spheres: (a) the continuous region (scan area, 3 µm×3 µm; scan step, 0.1 µm), (b) the defective region (scan area, 2 µm×2 µm; scan step, 0.1 µm).

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